Solve the problem.A pair of jeans you want to purchase has been marked down 35%. The jeans now cost $72.15. To find the price before the markdown, solve the equation 
A. $11.10
B. $111
C. $146
D. $116
Answer: B
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Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = x2 - 9x + 12
A. Increasing on 
; decreasing on 
B. Increasing on 
; decreasing on 
C. Increasing on 
; decreasing on 
D. Increasing on 
; decreasing on 
Solve the application problem.Mark started his morning walk by going uphill for 5 minutes. Then for the next 5 minutes, he walked downhill to an elevation lower than his starting point. For the next 10 minutes, he walked on level ground. For the final 10 minutes, he walked uphill. Which graph matches the description of Mark's walk?
A. 
B. 
C. 
D. 
Add or subtract. Express the answer as a mixed number.13
- 6
A. 18
B. 6
C. 19
D. 6
Solve the problem.The sum of three numbers is 3. The first, minus the second, plus 4 times the third, is -10. The third, plus 2 times the first, plus the second, is 2. What are the numbers?
A. -1, -1, 5 B. 1, -5, 1 C. -1, 5, -1 D. No solution